One of the most prominent results by the Kepler mission [1]} was the detection of hundreds of multiplanet systems.
The analysis of the architectures of these systems revealed the ubiquity of close-in sub-Neptune, super-Earth and Earth-like planets, and led to important insights about the statistical relations among planets within such systems [2]}, [3]}, [4]}. One example is the "peas in a pod" pattern, first noted by [5]}, [4]}, and further discussed in [7]}, [8]}, [9]}, [10]}. In systems that exhibit this pattern, planets orbiting the same host tend to be similar in size and have regular orbital spacing. At present, it is not completely clear yet whether this pattern is indeed of astrophysical origin or a selection effect due to observational biases [11]}, [12]},
nonetheless, the evidence seems to support the case that the pattern is of astrophysical origin [8]}, [14]}, [10]}.
